Why don't you call to check the phone bill by SMS?

You can't receive SMS or verification code due to the following reasons:

1. You can check whether the mailbox is full first. If it is full, please delete some information.

2. If it is still not received after deletion, you can change the machine or card to see if it is a hardware factor;

3. After eliminating the above reasons, you can try to test whether it can be received in other places to see if it is the reason for the weak local signal.

4. If you can normally receive short messages from other mobile phone numbers, but you can't accept short messages from Unicom or other 106, whether you have blocked spam messages, you can also resume blocking services.

If the above problems do not exist, it may be related to the network function. Please contact the local manual customer service to handle this problem.